Collapsible modular winebin unit



FIG. 1 is a front elevational view of a collapsible modular winebin unit showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof; and

FIG. 4 is an exploded perspective view of FIG. 1. 

The ornamental design for a collapsible modular winebin unit, substantially as shown and described. 